Furthermore, his average plus/minus as a starter (+15.3) is significantly better than off the bench (+0.3).

His field goal percentage improves to .526 as a starter (.462 from 3PT range) versus .375 off the bench (.306 from 3PT range).

And he averages 5.0 assists and 2.7 steals per game as a starter compared to 3.9 assists and 1.3 steals off the bench.

Perhaps most impressive, his turnover numbers as a starter have dropped to 0.3 per game versus 1.6 off the bench, despite playing more minutes when he starts.

Smart could soon return to the second unit to accommodate the elite offensive potential of Jaylen Brown and Gordon Hayward.

Brown missed the last three games with back spasms, so Smart's role will continue to fluctuate.

Stevens has been hesitant to name Smart a full-time starter, pointing out to reporters:

"The problem with starting Marcus Smart is you can’t bring his energy off the bench. He’s a valuable guy in both of those areas for the same reason."

Smart is arguably best suited for a sixth man role with the Celtics because his two-way versatility and explosive playmaking ability allow him to impact games immediately upon checking into any situation.

Additionally, Hayward and Brown are simply too talented not to start. They will displace Smart as soon as they prove to Stevens that they can open games with comparable intensity.

Hayward has struggled to regain his footing after last year’s horrific ankle injury, but he impressed the basketball world on Saturday night with one of the best statistical performances in NBA history for a player off the bench.

Hayward’s 30-9-8 outburst reportedly came on the heels of a scuffle with Smart during practice when physical defense and several hard fouls resulted in a red-faced Hayward becoming enraged.

But instead of losing his composure, Hayward responded to Smart's ferocity by using his own strength and size to throw down some of his most thunderous dunks since the injury.